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140769214 = 21719217909
BaseRepresentation
bin10000110001111…
…11011110111110
3100210212211001121
420120333132332
5242014103324
621545101154
73326342605
oct1030773676
9323784047
10140769214
1172507aa3
123b1877ba
13232194c1
14149a4a3c
15c5595e4
hex863f7be

140769214 has 16 divisors (see below), whose sum is σ = 235342800. Its totient is φ = 62757504.

The previous prime is 140769199. The next prime is 140769227. The reversal of 140769214 is 412967041.

It is a super-2 number, since 2×1407692142 = 39631943220355592, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a self number, because there is not a number n which added to its sum of digits gives 140769214.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108309 + ... + 109600.

It is an arithmetic number, because the mean of its divisors is an integer number (14708925).

Almost surely, 2140769214 is an apocalyptic number.

140769214 is a deficient number, since it is larger than the sum of its proper divisors (94573586).

140769214 is a wasteful number, since it uses less digits than its factorization.

140769214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217947.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 140769214 is about 11864.6202636241. The cubic root of 140769214 is about 520.1986593022.

The spelling of 140769214 in words is "one hundred forty million, seven hundred sixty-nine thousand, two hundred fourteen".

Divisors: 1 2 17 19 34 38 323 646 217909 435818 3704453 4140271 7408906 8280542 70384607 140769214